Fixed fps count.
Added FollowingCamera.
Fixed jsdoc return tags to the correct type.
Fixed getDocumentSize(), it now returns the visible width and height.
Fixed cancel animation frame call, used in stop().
On merge(), shapes are now transformed to an AABB.
Fixed separating axis calculation.
Added renderSegment method to render a line segment.
Added renderLineSegment method and fixed rendering of shapes and text.
Fixed distanceTo method.
Added ray object and intersection methods.
Added WASDController.
Updated list of files to compile.
Builds updated.